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Manson JL, Lancaster T, Chapon LC, et al. Cu(HCO2)2(pym) (pym = pyrimidine): low-dimensional magnetic behavior and long-range ordering in a quantum-spin lattice. Inorg Chem. 2005;44(4):989-95doi: 10.1021/ic048723x.
Manson, J. L., Lancaster, T., Chapon, L. C., Blundell, S. J., Schlueter, J. A., Brooks, M. L., Pratt, F. L., Nygren, C. L., & Qualls, J. S. (2005). Cu(HCO2)2(pym) (pym = pyrimidine): low-dimensional magnetic behavior and long-range ordering in a quantum-spin lattice. Inorganic chemistry, 44(4), 989-95. https://doi.org/10.1021/ic048723x
Manson, J L, et al. "Cu(HCO2)2(pym) (pym = pyrimidine): low-dimensional magnetic behavior and long-range ordering in a quantum-spin lattice." Inorganic chemistry vol. 44,4 (2005): 989-95. doi: https://doi.org/10.1021/ic048723x
Manson JL, Lancaster T, Chapon LC, Blundell SJ, Schlueter JA, Brooks ML, Pratt FL, Nygren CL, Qualls JS. Cu(HCO2)2(pym) (pym = pyrimidine): low-dimensional magnetic behavior and long-range ordering in a quantum-spin lattice. Inorg Chem. 2005 Feb 21;44(4):989-95. doi: 10.1021/ic048723x. PMID: 15859278.
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Inorg Chem. 2005 Feb 21;44(4):989-95. doi: 10.1021/ic048723x.

Cu(HCO2)2(pym) (pym = pyrimidine): low-dimensional magnetic behavior and long-range ordering in a quantum-spin lattice.

Inorganic chemistry

J L Manson, T Lancaster, L C Chapon, S J Blundell, J A Schlueter, M L Brooks, F L Pratt, C L Nygren, J S Qualls

Affiliations

  1. Department of Chemistry and Biochemistry, Eastern Washington University, Cheney, Washington 99004, USA. [email protected]

PMID: 15859278 DOI: 10.1021/ic048723x

Abstract

We synthesized and structurally and magnetically characterized the novel 3D coordination polymer Cu(HCO2)2(pym) (pym = pyrimidine). The compound crystallizes in the monoclinic space group C2/c with a = 14.4639(8) A, b = 7.7209(4) A, c = 8.5172(5) A, beta = 126.076(2) degrees, and V= 768.76(7) A3. In the structure buckled layers of Cu(HCO2)2 are interconnected by pym ligands to afford 1D Cu-pym-Cu chains. Bulk magnetic susceptibility measurements show a broad maximum at 25 K that is indicative of short-range magnetic ordering. Between 12 and 300 K a least-squares fit of the chi(T) data to a mean-field-corrected antiferromagnetic chain model yielded excellent agreement for g = 2.224(3), J/kB = -26.9(2) K, and zJ'/kB = -1.1(3) K. Below approximately 3 K a transition to long-range magnetic ordering is observed, as suggested by a sharp and sudden decrease in chi(T). This result is corroborated by muon spin relaxation measurements that show oscillations in the muon asymmetry below T(N) = 2.802(1) K and rapidly fluctuating moments above T(N).

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